H3C Technologies H3C S10500 Series Switches - Manual (Page 336)

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Enabling IPv6 multicast routing
Before you configure any Layer 3 IPv6 multicast functionality, you must enable IPv6 multicast routing.
Follow these steps to enable IPv6 multicast routing:
To do… Use the Command… Remarks
Enter system view system-view —
Enable IPv6 multicast routing multicast ipv6 routing-enable
Required
Disabled by default.
Configuring IPv6 multicast routing and forwarding
Configuration prerequisites
Before you configure IPv6 multicast routing and forwarding, complete the following tasks:
• Enable IPv6 forwarding and configure an IPv6 unicast routing protocol so that all devices in the
domain are interoperable at the network layer
• Configure IPv6 PIM-DM or IPv6 PIM-SM
• Determine the maximum number of downstream nodes for a single entry in the IPv6 multicast
forwarding table
• Determine the maximum number of entries in the IPv6 multicast forwarding table
Configuring an IPv6 multicast routing policy
You can configure the router to determine the RPF route based on the longest match principle. For more
information about RPF route selection, see “ RPF check process .”
By configuring per-source or per-source-and-group load splitting, you can optimize the traffic delivery
when multiple IPv6 multicast data streams are handled.
Follow these steps to configure an IPv6 multicast routing policy:
To do... Use the command... Remarks
Enter system view system-view —
Configure the device to select the
RPF route based on the longest
match
multicast ipv6 longest-match
Optional
The route with the highest priority is
selected as the RPF route by
default.
Configure IPv6 multicast load
splitting multicast ipv6 load-splitting
{source | source-group } Optional
Disabled by default.
Configuring an IPv6 multicast forwarding range
IPv6 multicast packets do not travel infinitely in a network. The IPv6 multicast data of each IPv6 multicast
group must be transmitted within a definite scope.